Haha, thanks. This is quite entertaining. A modern origin myth. Never thought I'd see something like that widespread uptake. It says that textbooks as late as

Haha, thanks. This is quite entertaining. A modern origin myth. Never thought I'd see something like that widespread uptake. It says that textbooks as late as 1981 had this stuff in them. Fascinating. Boy am I glad they got rid of this stuff by the time I was in school in the '90s.